Date: Mon, 11 Dec 2006 17:57:32 +0100
From: Andreas Kretschmer <akretschmer@spamfence.net>
To: pgsql-performance@postgresql.org
Subject: Re: really quick multiple inserts can use COPY?
Message-ID: <20061211165731.GA11970@KanotixBox>
References: <op.tkekypo381rjf6@xjens.apus.local>
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Jens Schipkowski <jens.schipkowski@apus.co.at> schrieb:

> Hello!
> 
> In our JAVA application we do multiple inserts to a table by data from a  
> Hash Map. Due to poor database access implemention - done by another  
> company (we got the job to enhance the software) - we cannot use prepared  
> statements. (We are not allowed to change code at database access!)
> First, we tried to fire one INSERT statement per record to insert. This  
> costs 3 ms per row which is to slow because normally we insert 10.000  
> records which results in 30.000 ms just for inserts.

Can you change this from INSERT-Statements to COPY? Copy is *much*
faster than INSERT.

If no, do you using all INSERTs in one transaction? I believe, a 'BEGIN'
and a 'COMMIT' around all INSERTs may increase the speed.


Andreas
-- 
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